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Difference between Hydro and Dry top arms?
https://www.ausmini.com/forums/viewtopic.php?f=2&t=59802		 Page 1 of 1
Author:  Minieleven11 [ Thu Dec 24, 2009 3:58 pm ]
Post subject:  Difference between Hydro and Dry top arms?
Hi guys just wondering what the difference between hydro and dry suspension top arms are?
Cheers Jack
Author:  GR [ Thu Dec 24, 2009 4:25 pm ]
Post subject: 
Hi Minieleven11
Where the ball and socket fit in the top arm this is closer to the ball joint, so if you fit these to a rubber cone it will make your spring rate harder, than the std arms, good for race cars
Graham Russell
Author:  Harley [ Thu Dec 24, 2009 4:35 pm ]
Post subject: 
Did hydro arms have stubs for shock absorber mounts?
Author:  Morris 1100 [ Thu Dec 24, 2009 4:39 pm ]
Post subject: 
Harley wrote:
Did hydro arms have stubs for shock absorber mounts?

The hydro arm has a bolt through the shock mount hole to fit the bump stop.
Author:  GT mowog [ Thu Dec 24, 2009 5:27 pm ]
Post subject: 
Harley wrote:
Did hydro arms have stubs for shock absorber mounts?


They had a bolt to hold the bump stop on, however it was only 1/4" in diameter for the hydro arms. For standard shock mounts they need to be 3/8".

Cheers.
Author:  drmini in aust [ Thu Dec 24, 2009 6:16 pm ]
Post subject: 
GT mowog wrote:
Harley wrote:
Did hydro arms have stubs for shock absorber mounts?


They had a bolt to hold the bump stop on, however it was only 1/4" in diameter for the hydro arms. For standard shock mounts they need to be 3/8".

Cheers.

They are bloody hard to drill, on the car. Those arms are tuff stuff.
I used M8x100 Grade 12 Unbrako capscrews instead, and bushed the lower shock bushes to 8mm.
Been fine the last 10 years or so. :wink:

see http://www.ausmini.com/forums/viewtopic.php?t=12180
Author:  GR [ Thu Dec 24, 2009 6:19 pm ]
Post subject: 
Hi
We just run a 5/16 high tensile bolt in our race cars no problems,drill it out with a hand drill :D
Graham Russell
Author:  TheMiniMan [ Thu Dec 24, 2009 6:40 pm ]
Post subject: 
GT mowog wrote:
Harley wrote:
Did hydro arms have stubs for shock absorber mounts?


They had a bolt to hold the bump stop on, however it was only 1/4" in diameter for the hydro arms. For standard shock mounts they need to be 3/8".

Cheers.


Nah, they`re 5/16ths std

drill to 3/8 for shocky fitment

& yeah right GR,,, you can do my next set with a hand drill,,, i`ll sit back eating some wagon wheels & sipping on my cup(s) of tea watching you :-) :-) :-)

crickey , next thing you`ll say is that mini crown wheels are soft & can cut with a kitchen knife yeah>??? :-) :-) :-)

Merry Christmas
Author:  GR [ Thu Dec 24, 2009 7:56 pm ]
Post subject: 
Hi Matt
Ya gota learn to sharpen drills matt, there not hard matt a little tough may be but there not that hard.
Yes i can machine the crown wheels out but not with the kitchen knife
i use that to wedge cranks :shock:
Graham
Author:  TheMiniMan [ Thu Dec 24, 2009 11:11 pm ]
Post subject: 
oh!!! do drill bits need to be sharp??? Damn,,, i thought there was "something" i was supposed to do :-)

& as for wedging cranks, --> i just get my girlfriend to sit on them & tow them on a rope behind the V8 kombi on the concreat footpath... isn`t that how it`s supposed to be done???

I had to machine the crown wheel teeth off to fit my motorbike sprocket on for my R1 hillclimb special,,, Unkle Bruce Ayers wasn`t happy with me wearing out/breaking a few of his ceramic tips :-) it just meant i bought more than the usual amount of Carlton Cold for him that week
:-)

As for my CNC light-flywheels,,, well,,, CNC means "Chunks of Nastey Crap" doesn`t it???

:-)
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